第一項の係数が(a+1)×1
第三項の係数が(-1)×1なので
((a+1)x+1)(x-1)
or
((a+1)x-1)(x+1)
どちらか
あとは確かめてください。
たすき掛けというやつです
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第一項の係数が(a+1)×1
第三項の係数が(-1)×1なので
((a+1)x+1)(x-1)
or
((a+1)x-1)(x+1)
どちらか
あとは確かめてください。
たすき掛けというやつです
Users viewing this question
are also looking at these questions 😉
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